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Which of the following best describes subnetting in cloud computing?
a. Dividing a network into smaller segments
b. Combining multiple networks into one
c. Disabling IP routing
d. Increasing broadcast domain size
Answer: a. Dividing a network into smaller segmentsscribd+2
What is a major benefit of subnetting for cloud-hosted environments?
a. Enhanced broadcast traffic
b. IP address conservation
c. Reduced network segmentation
d. Disabled routing protocols
Answer: b. IP address conservationgeeksforgeeks+2
In a Class C network (192.168.1.0/24) split into 4 subnets, what will be the new subnet mask?
a. /26 (255.255.255.192)
b. /25 (255.255.255.128)
c. /27 (255.255.255.224)
d. /28 (255.255.255.240)
Answer: a. /26 (255.255.255.192)webasha+1
Which address is used for identifying all hosts in a subnet?
a. Network address
b. Broadcast address
c. Gateway address
d. Host address
Answer: b. Broadcast addresssanfoundry+1
Subnetting primarily helps in which of the following?
a. Increasing network congestion
b. Limiting broadcast domains
c. Removing IP addresses
d. Increasing IP fragmentation
Answer: b. Limiting broadcast domainsstudy-ccna+2
In cloud networking, what does VPC subnetting enable?
a. Grouping unrelated resources randomly
b. Segregating resources by function or security
c. Disabling access control lists
d. Expanding the root domain
Answer: b. Segregating resources by function or securityexam-labs+1
Which subnet mask allows exactly 30 usable host addresses?
a. 255.255.255.240
b. 255.255.255.248
c. 255.255.255.252
d. 255.255.255.224
Answer: a. 255.255.255.240 (/28)ipcisco+1
Which cloud networking service often requires dynamic subnet allocation?
a. CDN edge cache
b. Network Function Virtualization (NFV)
c. Physical switch provisioning
d. VPN termination
Answer: b. Network Function Virtualization (NFV)exam-labs
What is the primary reason for creating multiple subnets in a cloud VPC?
a. To use up all available IPs
b. To facilitate resource isolation and control
c. To decrease network scalability
d. To avoid VLAN use
Answer: b. To facilitate resource isolation and controlcloud.in28minutes+1
What calculation provides the number of usable IPs per subnet?
a. 2^n
b. 2^n + 2
c. 2^n – 2
d. n^2
Answer: c. 2^n – 2dev+2
What is the main difference between Classful and Classless (CIDR) subnetting?
a. Classful is obsolete and doesn’t support variable masks
b. CIDR allows flexible subnet sizes
c. Both require fixed mask lengths
d. Classless cannot be used in cloud
Answer: b. CIDR allows flexible subnet sizesnitizsharma+2
Why is subnetting considered important for cloud network security?
a. It enables VLAN tagging only
b. It isolates sensitive resources
c. It disables firewall rules
d. It increases IP address reuse
Answer: b. It isolates sensitive resourcesfiveable+2
How many usable addresses are in a /29 subnet?
a. 2
b. 6
c. 8
d. 14
Answer: b. 6webasha+1
Which cloud configuration step follows subnet planning?
a. Updating network documentation
b. Assigning global DNS
c. Disabling routing tables
d. Avoiding NAT setup
Answer: a. Updating network documentationfiveable+1
Given an IP of 10.1.1.0/27, how many hosts can this subnet support?
a. 30
b. 62
c. 14
d. 126
Answer: a. 30ipcisco+1
In an AWS VPC, why would you create a public and a private subnet?
a. To maximize latency
b. To separate resources exposed to the internet from isolated ones
c. To disable routing for EC2
d. To duplicate IP allocation
Answer: b. To separate resources exposed to the internet from isolated onescloud.in28minutes
What is the valid subnet mask for a network needing 500 hosts?
a. /23
b. /24
c. /25
d. /26
Answer: a. /23 (255.255.254.0)sanfoundry+2
What is the default subnet mask for a Class B IPv4 address?
a. 255.255.0.0
b. 255.255.255.0
c. 255.0.0.0
d. 255.255.255.128
Answer: a. 255.255.0.0sanfoundry+1
Which technology enhances subnet flexibility in cloud computing?
a. Static IP mapping
b. VLSM (Variable Length Subnet Masking)
c. Broadcast storm management
d. ARP table sorting
Answer: b. VLSM (Variable Length Subnet Masking)nitizsharma+2
If a VPC subnet has a mask of /20, which is the total IP count?
a. 256
b. 4096
c. 1024
d. 512
Answer: c. 4096talentbattle+2
What is a ‘broadcast domain’ in subnetting?
a. All hosts sharing the same router
b. All hosts within the same subnet that receive broadcast
c. All routers within an organization
d. All hosts grouped by VLAN ID
Answer: b. All hosts within the same subnet that receive broadcastgeeksforgeeks+1
Which step is not part of cloud subnetting implementation?
a. Plan subnet sizes
b. Configure device IPs
c. Avoid network documentation
d. Monitor address utilization
Answer: c. Avoid network documentationdev+1
Which aspect of subnetting optimizes cloud resource allocation?
a. Oversubscription of IPs per subnet
b. Sizing subnets per workload demand
c. Locking subnet configuration to hardware
d. Ignoring address utilization
Answer: b. Sizing subnets per workload demandfiveable+1
Which address type does not exist in a subnet?
a. Network
b. Broadcast
c. Gateway
d. Loopback
Answer: d. Loopbackstudy-ccna+1
How many bits are needed to create 8 subnets?
a. 1
b. 2
c. 3
d. 4
Answer: c. 3geeksforgeeks+1
What is the first usable IP in the subnet 192.168.10.16/28?
a. 192.168.10.17
b. 192.168.10.16
c. 192.168.10.31
d. 192.168.10.15
Answer: a. 192.168.10.17ipcisco+1
Which subnet mask offers maximum host addresses in IPv4?
a. /8
b. /16
c. /32
d. /24
Answer: a. /8 (Class A)sanfoundry+1
Which technology is essential for cloud-based dynamic subnet provisioning?
a. SDN (Software Defined Networking)
b. NAT overloading
c. ARP flooding
d. MAC address spoofing
Answer: a. SDN (Software Defined Networking)exam-labs
What does the acronym ‘VPC’ stand for in cloud networking?
a. Virtual Public Connection
b. Virtual Private Cloud
c. Variable Protocol Channel
d. Versioned Packet Carrier
Answer: b. Virtual Private Cloudcloud.in28minutes+1
What is the CIDR notation equivalent to a subnet mask of 255.255.255.240?
a. /27
b. /28
c. /29
d. /30
Answer: b. /28webasha+1
Subnetting in cloud is most useful for:
a. Decreasing scalability
b. Reducing IP waste
c. Ignoring resource isolation
d. Increasing broadcast traffic
Answer: b. Reducing IP wastednsstuff+2
In subnetting, which defines the number of subnetworks available?
a. Total IP range divided by host count
b. Number of bits borrowed from the host part
c. Broadcast address count
d. Gateway assignments
Answer: b. Number of bits borrowed from the host partdev+1
Which IP represents the broadcast address for a /26 subnet starting at 192.168.1.0?
a. 192.168.1.63
b. 192.168.1.64
c. 192.168.1.1
d. 192.168.1.62
Answer: a. 192.168.1.63webasha+2
Why is monitoring IP address utilization important in cloud subnetting?
a. To avoid address exhaustion and scale efficiently
b. To increase IP fragmentation
c. To reduce routing performance
d. To hide network topology
Answer: a. To avoid address exhaustion and scale efficientlyfiveable+1
Which tool is commonly used for IP address/subnet visualization?
a. ARP cache exporter
b. Network diagrams and visualizers
c. SMTP relay tool
d. DNSSEC auditor
Answer: b. Network diagrams and visualizersdev+1
Which statement is correct regarding private cloud subnetting?
a. It enables public internet exposure of all VMs
b. It segments resources for isolation and compliance
c. It prevents VMs from communicating
d. It disables routing protocol use
Answer: b. It segments resources for isolation and complianceexam-labs+1
Which is NOT a best practice when planning cloud subnets?
a. Document all subnets and IP allocations
b. Use hierarchical structure
c. Overallocate IPs for future
d. Ignore growth planning
Answer: d. Ignore growth planningfiveable
What is the minimum subnet mask length supported in IPv4?
a. /1
b. /8
c. /0
d. /32
Answer: b. /8study-ccna+1
What is the primary function of subnetting for cloud service providers?
a. Enabling easier IP management and scalability
b. Reducing address space flexibility
c. Disabling VPC peering
d. Ignoring traffic segmentation
Answer: a. Enabling easier IP management and scalabilitycloud.in28minutes+1
What is the network address of 192.168.100.64/28?
a. 192.168.100.64
b. 192.168.100.80
c. 192.168.100.62
d. 192.168.100.96
Answer: a. 192.168.100.64ipcisco+1
Why is subnetting crucial for multi-tenant cloud architectures?
a. It ensures resource isolation for each tenant
b. It merges all tenant networks into one
c. It disables routing between tenants
d. It limits tenant scalability
Answer: a. It ensures resource isolation for each tenantexam-labs+1
What is the valid range of host IPs in 172.16.10.128/25?
a. 172.16.10.129 – 172.16.10.254
b. 172.16.10.128 – 172.16.10.255
c. 172.16.10.130 – 172.16.10.254
d. 172.16.10.129 – 172.16.10.255
Answer: a. 172.16.10.129 – 172.16.10.254sanfoundry+1
Which protocol most benefits from subnetting in cloud environments?
a. DHCP
b. FTP
c. HTTP
d. Telnet
Answer: a. DHCPdnsstuff+1
In subnetting, what does a gateway typically do?
a. Routes traffic between subnets
b. Blocks all external communication
c. Assigns IPs randomly
d. Disables ARP requests
Answer: a. Routes traffic between subnetsgeeksforgeeks+1
What is the subnet mask in binary for /27?
a. 11111111.11111111.11111111.11100000
b. 11111111.11111111.11111111.11111100
c. 11111111.11111111.11111111.11111000
d. 11111111.11111111.11111111.11000000
Answer: c. 11111111.11111111.11111111.11111000webasha+1
Which type of subnet is used to host publicly accessible resources?
a. Private subnet
b. DMZ subnet / public subnet
c. Management subnet
d. Secure subnet
Answer: b. DMZ subnet / public subnetcloud.in28minutes+1
Which statement about the broadcast address is true?
a. It is used for sending messages to all devices in the subnet
b. It is used only by external routers
c. It identifies the subnet gateway
d. It disables all host communication
Answer: a. It is used for sending messages to all devices in the subnetgeeksforgeeks+1
Subnetting helps cloud architects achieve which goal?
a. Increase network complexity unnecessarily
b. Simplify management and scale resources
c. Disable workload separation
d. Ignore compliance requirements
Answer: b. Simplify management and scale resourcesdnsstuff+2
Which factor does NOT affect subnet sizing in cloud design?
a. Expected growth
b. Number of devices per subnet
c. IP address utilization rate
d. MAC address length
Answer: d. MAC address lengthdev+1
Which outcome is expected from successful cloud subnetting implementation?
a. Resource isolation, efficient IP use, scalable network
b. Increased broadcast storms, static configuration
c. Network lockdown, manual IP assignment
d. Decreased routing flexibility, fixed allocations
Answer: a. Resource isolation, efficient IP use, scalable networkgeeksforgeeks+2

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